Thumb Screw Grip Style Knurled Type Thumb Screw Finish Plain Material 18-8 Stainless Steel Thread Size M3.5-0.60 Fastener Length 8 mm Head Width 5 mm Head Height 5 mm Tensile Strength 80 000 psi Head Type Knurled System of Measurement Metric Head Material 18-8 Stainless Steel Package Quantity 5